it is ___ difficult for us___climb the mountains 选哪个

it is ___ difficult for us___climb the mountains 选哪个 It is so difficult for the disabled people____(open) and ___ It is _ difficlt for us to climb the mountains It is very difficult _____（drive）in the mountains.用恰当形式填空怎么写 the problem is difficult ___ . It is difficult to the point of impossibility for It is difficult for me to choose the right hairstyle It is not difficult for me to climb the mountain. It is difficult for chilsen to ___ ___ ____ dogs.对孩子们来说,狗很难照 it is in the mountains是什么意思? The question ___(It) wasn't difficult. it is very difficult for me.